Lupane and Oleanane Triterpenoids from the Cones of Liquidamber styraciflua
摘要:
A new lupane- (1) and a new oleanane-type (2) triterpenoid, together with a known compound, massagenic acid G, were isolated from the cones of Liquidamber styraciflua. The structures of 1 and 2 were determined as 6 beta,30-dihydroxy-3-oxolup-20(29)-en-28-oic acid and 3 alpha-hydroxy-11-oxoolean-12-en-28-oic acid, respectively, on the basis of spectroscopic methods and chemical conversion. Compound 1 and several structural analogues were evaluated for cytotoxicity against the P388 (murine lymphocyte leukemia) and the A549 (human lung cancer) cell lines.
Lupane and Oleanane Triterpenoids from the Cones of Liquidamber styraciflua
摘要:
A new lupane- (1) and a new oleanane-type (2) triterpenoid, together with a known compound, massagenic acid G, were isolated from the cones of Liquidamber styraciflua. The structures of 1 and 2 were determined as 6 beta,30-dihydroxy-3-oxolup-20(29)-en-28-oic acid and 3 alpha-hydroxy-11-oxoolean-12-en-28-oic acid, respectively, on the basis of spectroscopic methods and chemical conversion. Compound 1 and several structural analogues were evaluated for cytotoxicity against the P388 (murine lymphocyte leukemia) and the A549 (human lung cancer) cell lines.